From building a multi-billion dollar company to General Partner at the world’s top startup incubator

Today on BILLIONS, I’m sitting down with Nicolas Dessaigne — the engineer who bet everything on one idea, built Algolia into a multi-billion-dollar global search platform… and then did something almost no founder ever does:

he walked away.

Nicolas went from obsessing over one company for a decade… to shaping hundreds of startups every year as a General Partner at Y Combinator, the most influential accelerator on the planet.

In this episode, we will talk about why he left Algolia, how founders should think about liquidity, what really happens inside YC, and why the next wave of AI will be bigger — and stranger — than anyone expects.

If you’ve ever wondered what happens when a unicorn founder switches sides and becomes the one choosing the next unicorns… this conversation will change the way you think about ambition, ego, and the future of startups.

TIMELINE :

00:00:00 - 00:06:39: Why I walked away from my billion-dollar company

00:06:39 - 00:11:46: The brutal truth about founder liquidity and secondary sales

00:11:46 - 00:17:35: Inside YC's investment strategy and partner dynamics

00:17:35 - 00:22:31: How to spot the next unicorn founders before anyone else

00:22:31 - 00:28:02: The AI company revolution happening right now

00:28:02 - 00:34:50: Why your kids will outperform you with AI superpowers

00:34:50 - 00:40:47: Robotics and the future of physical AI agents

00:40:47 - 00:46:09: The model wars - who's really winning the AI race

00:46:09 - 00:51:04: Why Google shocked everyone and OpenAI's real advantage

00:51:04 - 00:54:44: The counterintuitive way to find billion-dollar startup ideas

REFERENCES :

- Bryan Onel, Oneleet founder 

- François Chollet, ARC Prize founder

- Yann LeCun

- Y Combinator